A253424 as a triangular array
| | | | | | | | | 17 |
| | | | | | | | | 56 | | 56 |
| | | | | | | | 257 | | 131 | | 257 |
| | | | | | | 642 | | 1087 | | 1087 | | 642 |
| | | | | | 1581 | | 2827 | | 9985 | | 2827 | | 1581 |
| | | | | 2389 | | 10411 | | 44729 | | 44729 | | 10411 | | 2389 |
| | | | 5716 | | 15803 | | 215037 | | 316686 | | 215037 | | 15803 | | 5716 |
| | | 7691 | | 41139 | | 321383 | | 1432500 | | 1432500 | | 321383 | | 41139 | | 7691 |
| | 11429 | | 52297 | | 1399041 |
|
A253424 as a square array
17 | 56 | 257 | 642 | 1581 | 2389 | 5716 | 7691 | 11429
| 56 | 131 | 1087 | 2827 | 10411 | 15803 | 41139 | 52297
| 257 | 1087 | 9985 | 44729 | 215037 | 321383 | 1399041
| 642 | 2827 | 44729 | 316686 | 1432500
| 1581 | 10411 | 215037 | 1432500
| 2389 | 15803 | 321383
| 5716 | 41139
| 7691
|
A253424 as an upper right triangle
17 | 56 | 257 | 642 | 1581 | 2389 | 5716 | 7691 | 11429
| | 56 | 131 | 1087 | 2827 | 10411 | 15803 | 41139 | 52297
| | | 257 | 1087 | 9985 | 44729 | 215037 | 321383 | 1399041
| | | | 642 | 2827 | 44729 | 316686 | 1432500
| | | | | 1581 | 10411 | 215037 | 1432500
| | | | | | 2389 | 15803 | 321383
| | | | | | | 5716 | 41139
| | | | | | | | 7691
| | | | | | | |
|
|